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369 lines
11 KiB
PHP
369 lines
11 KiB
PHP
<?php
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/*
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+-----------------------------------------------------------------------+
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| program/include/rcube_config.php |
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| This file is part of the Roundcube Webmail client |
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| Copyright (C) 2008-2010, The Roundcube Dev Team |
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| Licensed under the GNU GPL |
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| PURPOSE: |
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| Class to read configuration settings |
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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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* Configuration class for Roundcube
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*
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* @package Core
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*/
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class rcube_config
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{
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private $prop = array();
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private $errors = array();
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private $userprefs = array();
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/**
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* Object constructor
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*/
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public function __construct()
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{
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$this->load();
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}
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/**
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* Load config from local config file
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*
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* @todo Remove global $CONFIG
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*/
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private function load()
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{
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// load main config file
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if (!$this->load_from_file(RCMAIL_CONFIG_DIR . '/main.inc.php'))
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$this->errors[] = 'main.inc.php was not found.';
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// load database config
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if (!$this->load_from_file(RCMAIL_CONFIG_DIR . '/db.inc.php'))
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$this->errors[] = 'db.inc.php was not found.';
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// load host-specific configuration
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$this->load_host_config();
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// set skin (with fallback to old 'skin_path' property)
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if (empty($this->prop['skin']) && !empty($this->prop['skin_path']))
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$this->prop['skin'] = str_replace('skins/', '', unslashify($this->prop['skin_path']));
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else if (empty($this->prop['skin']))
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$this->prop['skin'] = 'default';
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// fix paths
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$this->prop['log_dir'] = $this->prop['log_dir'] ? realpath(unslashify($this->prop['log_dir'])) : INSTALL_PATH . 'logs';
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$this->prop['temp_dir'] = $this->prop['temp_dir'] ? realpath(unslashify($this->prop['temp_dir'])) : INSTALL_PATH . 'temp';
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// fix default imap folders encoding
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foreach (array('drafts_mbox', 'junk_mbox', 'sent_mbox', 'trash_mbox') as $folder)
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$this->prop[$folder] = rcube_charset_convert($this->prop[$folder], RCMAIL_CHARSET, 'UTF7-IMAP');
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if (!empty($this->prop['default_imap_folders']))
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foreach ($this->prop['default_imap_folders'] as $n => $folder)
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$this->prop['default_imap_folders'][$n] = rcube_charset_convert($folder, RCMAIL_CHARSET, 'UTF7-IMAP');
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// set PHP error logging according to config
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if ($this->prop['debug_level'] & 1) {
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ini_set('log_errors', 1);
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if ($this->prop['log_driver'] == 'syslog') {
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ini_set('error_log', 'syslog');
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}
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else {
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ini_set('error_log', $this->prop['log_dir'].'/errors');
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}
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}
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// enable display_errors in 'show' level, but not for ajax requests
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ini_set('display_errors', intval(empty($_REQUEST['_remote']) && ($this->prop['debug_level'] & 4)));
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// set timezone auto settings values
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if ($this->prop['timezone'] == 'auto') {
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$this->prop['_timezone_value'] = $this->client_timezone();
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}
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else if (is_numeric($this->prop['timezone'])) {
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$this->prop['timezone'] = timezone_name_from_abbr("", $this->prop['timezone'] * 3600, 0);
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}
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// remove deprecated properties
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unset($this->prop['dst_active']);
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// export config data
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$GLOBALS['CONFIG'] = &$this->prop;
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}
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/**
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* Load a host-specific config file if configured
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* This will merge the host specific configuration with the given one
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*/
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private function load_host_config()
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{
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$fname = null;
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if (is_array($this->prop['include_host_config'])) {
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$fname = $this->prop['include_host_config'][$_SERVER['HTTP_HOST']];
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}
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else if (!empty($this->prop['include_host_config'])) {
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$fname = preg_replace('/[^a-z0-9\.\-_]/i', '', $_SERVER['HTTP_HOST']) . '.inc.php';
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}
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if ($fname) {
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$this->load_from_file(RCMAIL_CONFIG_DIR . '/' . $fname);
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}
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}
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/**
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* Read configuration from a file
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* and merge with the already stored config values
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*
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* @param string $fpath Full path to the config file to be loaded
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* @return booelan True on success, false on failure
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*/
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public function load_from_file($fpath)
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{
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if (is_file($fpath) && is_readable($fpath)) {
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// use output buffering, we don't need any output here
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ob_start();
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include($fpath);
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ob_end_clean();
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if (is_array($rcmail_config)) {
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$this->prop = array_merge($this->prop, $rcmail_config, $this->userprefs);
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return true;
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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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* Getter for a specific config parameter
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*
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* @param string $name Parameter name
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* @param mixed $def Default value if not set
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* @return mixed The requested config value
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*/
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public function get($name, $def = null)
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{
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$result = isset($this->prop[$name]) ? $this->prop[$name] : $def;
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$rcmail = rcmail::get_instance();
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if ($name == 'timezone' && isset($this->prop['_timezone_value']))
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$result = $this->prop['_timezone_value'];
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if (is_object($rcmail->plugins)) {
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$plugin = $rcmail->plugins->exec_hook('config_get', array(
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'name' => $name, 'default' => $def, 'result' => $result));
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return $plugin['result'];
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}
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return $result;
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}
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/**
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* Setter for a config parameter
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*
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* @param string $name Parameter name
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* @param mixed $value Parameter value
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*/
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public function set($name, $value)
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{
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$this->prop[$name] = $value;
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}
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/**
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* Override config options with the given values (eg. user prefs)
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*
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* @param array $prefs Hash array with config props to merge over
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*/
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public function merge($prefs)
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{
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$this->prop = array_merge($this->prop, $prefs, $this->userprefs);
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}
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/**
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* Merge the given prefs over the current config
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* and make sure that they survive further merging.
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*
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* @param array $prefs Hash array with user prefs
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*/
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public function set_user_prefs($prefs)
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{
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// Honor the dont_override setting for any existing user preferences
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$dont_override = $this->get('dont_override');
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if (is_array($dont_override) && !empty($dont_override)) {
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foreach ($prefs as $key => $pref) {
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if (in_array($key, $dont_override)) {
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unset($prefs[$key]);
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}
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}
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}
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$this->userprefs = $prefs;
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$this->prop = array_merge($this->prop, $prefs);
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// override timezone settings with client values
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if ($this->prop['timezone'] == 'auto') {
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$this->prop['_timezone_value'] = isset($_SESSION['timezone']) ? $this->client_timezone() : $this->prop['_timezone_value'];
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}
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else if (isset($this->prop['_timezone_value']))
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unset($this->prop['_timezone_value']);
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}
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/**
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* Getter for all config options
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*
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* @return array Hash array containg all config properties
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*/
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public function all()
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{
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return $this->prop;
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}
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/**
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* Special getter for user's timezone offset including DST
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*
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* @return float Timezone offset (in hours)
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* @deprecated
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*/
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public function get_timezone()
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{
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if ($this->get('timezone')) {
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$tz = new DateTimeZone($this->get('timezone'));
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return $tz->getOffset(new DateTime('now')) / 3600;
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}
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return 0;
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}
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/**
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* Return requested DES crypto key.
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*
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* @param string $key Crypto key name
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* @return string Crypto key
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*/
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public function get_crypto_key($key)
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{
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// Bomb out if the requested key does not exist
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if (!array_key_exists($key, $this->prop)) {
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raise_error(array(
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'code' => 500, 'type' => 'php',
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'file' => __FILE__, 'line' => __LINE__,
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'message' => "Request for unconfigured crypto key \"$key\""
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), true, true);
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}
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$key = $this->prop[$key];
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// Bomb out if the configured key is not exactly 24 bytes long
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if (strlen($key) != 24) {
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raise_error(array(
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'code' => 500, 'type' => 'php',
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'file' => __FILE__, 'line' => __LINE__,
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'message' => "Configured crypto key '$key' is not exactly 24 bytes long"
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), true, true);
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}
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return $key;
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}
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/**
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* Try to autodetect operating system and find the correct line endings
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*
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* @return string The appropriate mail header delimiter
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*/
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public function header_delimiter()
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{
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// use the configured delimiter for headers
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if (!empty($this->prop['mail_header_delimiter'])) {
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$delim = $this->prop['mail_header_delimiter'];
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if ($delim == "\n" || $delim == "\r\n")
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return $delim;
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else
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raise_error(array(
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'code' => 500, 'type' => 'php',
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'file' => __FILE__, 'line' => __LINE__,
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'message' => "Invalid mail_header_delimiter setting"
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), true, false);
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}
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$php_os = strtolower(substr(PHP_OS, 0, 3));
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if ($php_os == 'win')
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return "\r\n";
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if ($php_os == 'mac')
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return "\r\n";
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return "\n";
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}
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/**
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* Return the mail domain configured for the given host
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*
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* @param string $host IMAP host
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* @param boolean $encode If true, domain name will be converted to IDN ASCII
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* @return string Resolved SMTP host
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*/
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public function mail_domain($host, $encode=true)
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{
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$domain = $host;
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if (is_array($this->prop['mail_domain'])) {
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if (isset($this->prop['mail_domain'][$host]))
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$domain = $this->prop['mail_domain'][$host];
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}
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else if (!empty($this->prop['mail_domain']))
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$domain = rcube_parse_host($this->prop['mail_domain']);
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if ($encode)
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$domain = rcube_idn_to_ascii($domain);
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return $domain;
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}
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/**
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* Getter for error state
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*
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* @return mixed Error message on error, False if no errors
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*/
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public function get_error()
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{
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return empty($this->errors) ? false : join("\n", $this->errors);
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}
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/**
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* Internal getter for client's (browser) timezone identifier
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*/
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private function client_timezone()
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{
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return isset($_SESSION['timezone']) ? timezone_name_from_abbr("", $_SESSION['timezone'] * 3600, 0) : date_default_timezone_get();
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}
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}
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