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731 lines
22 KiB
PHP
731 lines
22 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) 2008-2014, The Roundcube Dev Team |
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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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| 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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*/
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/**
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* Configuration class for Roundcube
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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_config
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{
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const DEFAULT_SKIN = 'larry';
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private $env = '';
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private $paths = array();
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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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private $immutable = array();
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/**
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* Renamed options
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*
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* @var array
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*/
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private $legacy_props = array(
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// new name => old name
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'mail_pagesize' => 'pagesize',
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'addressbook_pagesize' => 'pagesize',
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'reply_mode' => 'top_posting',
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'refresh_interval' => 'keep_alive',
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'min_refresh_interval' => 'min_keep_alive',
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'messages_cache_ttl' => 'message_cache_lifetime',
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'mail_read_time' => 'preview_pane_mark_read',
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'redundant_attachments_cache_ttl' => 'redundant_attachments_memcache_ttl',
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);
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/**
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* Object constructor
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*
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* @param string $env Environment suffix for config files to load
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*/
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public function __construct($env = '')
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{
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$this->env = $env;
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if ($paths = getenv('RCUBE_CONFIG_PATH')) {
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$this->paths = explode(PATH_SEPARATOR, $paths);
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// make all paths absolute
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foreach ($this->paths as $i => $path) {
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if (!rcube_utils::is_absolute_path($path)) {
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if ($realpath = realpath(RCUBE_INSTALL_PATH . $path)) {
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$this->paths[$i] = unslashify($realpath) . '/';
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}
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else {
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unset($this->paths[$i]);
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}
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}
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else {
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$this->paths[$i] = unslashify($path) . '/';
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}
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}
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}
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if (defined('RCUBE_CONFIG_DIR') && !in_array(RCUBE_CONFIG_DIR, $this->paths)) {
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$this->paths[] = RCUBE_CONFIG_DIR;
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}
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if (empty($this->paths)) {
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$this->paths[] = RCUBE_INSTALL_PATH . 'config/';
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}
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$this->load();
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// Defaults, that we do not require you to configure,
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// but contain information that is used in various locations in the code:
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if (empty($this->prop['contactlist_fields'])) {
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$this->set('contactlist_fields', array('name', 'firstname', 'surname', 'email'));
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}
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}
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/**
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* @brief Guess the type the string may fit into.
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*
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* Look inside the string to determine what type might be best as a container.
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*
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* @param mixed $value The value to inspect
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*
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* @return The guess at the type.
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*/
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private function guess_type($value)
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{
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$type = 'string';
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// array requires hint to be passed.
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if (preg_match('/^[-+]?(\d+(\.\d*)?|\.\d+)([eE][-+]?\d+)?$/', $value) !== false) {
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$type = 'double';
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}
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else if (preg_match('/^\d+$/', $value) !== false) {
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$type = 'integer';
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}
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else if (preg_match('/(t(rue)?)|(f(alse)?)/i', $value) !== false) {
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$type = 'boolean';
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}
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return $type;
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}
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/**
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* @brief Parse environment variable into PHP type.
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*
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* Perform an appropriate parsing of the string to create the desired PHP type.
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*
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* @param string $string String to parse into PHP type
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* @param string $type Type of value to return
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*
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* @return Appropriately typed interpretation of $string.
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*/
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private function parse_env($string, $type)
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{
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$_ = $string;
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switch ($type) {
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case 'boolean':
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$_ = (boolean) $_;
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break;
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case 'integer':
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$_ = (integer) $_;
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break;
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case 'double':
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$_ = (double) $_;
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break;
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case 'string':
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break;
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case 'array':
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$_ = json_decode($_, true);
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break;
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case 'object':
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$_ = json_decode($_, false);
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break;
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case 'resource':
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case 'NULL':
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default:
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$_ = $this->parse_env($_, $this->guess_type($_));
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}
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return $_;
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}
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/**
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* @brief Get environment variable value.
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*
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* Retrieve an environment variable's value or if it's not found, return the
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* provided default value.
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*
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* @param string $varname Environment variable name
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* @param mixed $default_value Default value to return if necessary
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* @param string $type Type of value to return
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*
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* @return Value of the environment variable or default if not found.
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*/
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private function getenv_default($varname, $default_value, $type = null)
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{
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$value = getenv($varname);
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if ($value === false) {
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$value = $default_value;
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}
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else {
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$value = $this->parse_env($value, $type ?: gettype($default_value));
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}
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return $value;
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}
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/**
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* Load config from local config file
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*/
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private function load()
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{
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// Load default settings
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if (!$this->load_from_file('defaults.inc.php')) {
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$this->errors[] = 'defaults.inc.php was not found.';
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}
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// load main config file
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if (!$this->load_from_file('config.inc.php')) {
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// Old configuration files
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if (!$this->load_from_file('main.inc.php') || !$this->load_from_file('db.inc.php')) {
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$this->errors[] = 'config.inc.php was not found.';
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}
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else if (rand(1,100) == 10) { // log warning on every 100th request (average)
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trigger_error("config.inc.php was not found. Please migrate your config by running bin/update.sh", E_USER_WARNING);
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}
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}
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// load host-specific configuration
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$this->load_host_config();
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// set skin (with fallback to old 'skin_path' property)
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if (empty($this->prop['skin'])) {
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if (!empty($this->prop['skin_path'])) {
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$this->prop['skin'] = str_replace('skins/', '', unslashify($this->prop['skin_path']));
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}
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else {
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$this->prop['skin'] = self::DEFAULT_SKIN;
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}
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}
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// larry is the new default skin :-)
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if ($this->prop['skin'] == 'default') {
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$this->prop['skin'] = self::DEFAULT_SKIN;
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}
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// fix paths
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foreach (array('log_dir' => 'logs', 'temp_dir' => 'temp') as $key => $dir) {
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foreach (array($this->prop[$key], '../' . $this->prop[$key], RCUBE_INSTALL_PATH . $dir) as $path) {
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if ($path && ($realpath = realpath(unslashify($path)))) {
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$this->prop[$key] = $realpath;
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break;
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}
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}
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}
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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[$folder], RCUBE_CHARSET, 'UTF7-IMAP');
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}
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// set PHP error logging according to config
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if ($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']) && ($this->prop['debug_level'] & 4)));
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// remove deprecated properties
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unset($this->prop['dst_active']);
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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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if (empty($this->prop['include_host_config'])) {
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return;
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}
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foreach (array('HTTP_HOST', 'SERVER_NAME', 'SERVER_ADDR') as $key) {
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$fname = null;
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$name = $_SERVER[$key];
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if (!$name) {
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continue;
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}
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if (is_array($this->prop['include_host_config'])) {
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$fname = $this->prop['include_host_config'][$name];
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}
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else {
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$fname = preg_replace('/[^a-z0-9\.\-_]/i', '', $name) . '.inc.php';
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}
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if ($fname && $this->load_from_file($fname)) {
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return;
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}
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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 $file Name of the config file to be loaded
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*
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* @return booelan True on success, false on failure
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*/
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public function load_from_file($file)
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{
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$success = false;
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foreach ($this->resolve_paths($file) as $fpath) {
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if ($fpath && 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($fpath);
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ob_end_clean();
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if (is_array($config)) {
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$this->merge($config);
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$success = true;
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}
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// deprecated name of config variable
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if (is_array($rcmail_config)) {
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$this->merge($rcmail_config);
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$success = true;
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}
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}
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}
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return $success;
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}
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/**
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* Helper method to resolve absolute paths to the given config file.
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* This also takes the 'env' property into account.
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*
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* @param string $file Filename or absolute file path
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* @param boolean $use_env Return -$env file path if exists
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*
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* @return array List of candidates in config dir path(s)
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*/
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public function resolve_paths($file, $use_env = true)
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{
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$files = array();
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$abs_path = rcube_utils::is_absolute_path($file);
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foreach ($this->paths as $basepath) {
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$realpath = $abs_path ? $file : realpath($basepath . '/' . $file);
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// check if <file>-env.ini exists
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if ($realpath && $use_env && !empty($this->env)) {
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$envfile = preg_replace('/\.(inc.php)$/', '-' . $this->env . '.\\1', $realpath);
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if (is_file($envfile)) {
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$realpath = $envfile;
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}
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}
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if ($realpath) {
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$files[] = $realpath;
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// no need to continue the loop if an absolute file path is given
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if ($abs_path) {
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break;
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}
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}
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}
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return $files;
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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 $def Default value if not set
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*
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* @return mixed The requested config value
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*/
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public function get($name, $def = null)
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{
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if (isset($this->prop[$name])) {
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$result = $this->prop[$name];
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}
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else {
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$result = $def;
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}
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$result = $this->getenv_default('ROUNDCUBE_' . strtoupper($name), $result);
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$rcube = rcube::get_instance();
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if ($name == 'timezone') {
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if (empty($result) || $result == 'auto') {
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$result = $this->client_timezone();
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}
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}
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else if ($name == 'client_mimetypes') {
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if (!$result && !$def) {
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$result = 'text/plain,text/html,text/xml'
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. ',image/jpeg,image/gif,image/png,image/bmp,image/tiff,image/webp'
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. ',application/x-javascript,application/pdf,application/x-shockwave-flash';
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}
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if ($result && is_string($result)) {
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$result = explode(',', $result);
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}
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}
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$plugin = $rcube->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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/**
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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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* @param bool $immutable Make the value immutable
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*/
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public function set($name, $value, $immutable = false)
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{
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$this->prop[$name] = $value;
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if ($immutable) {
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$this->immutable[$name] = $value;
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}
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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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$prefs = $this->fix_legacy_props($prefs);
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$this->prop = array_merge($this->prop, $prefs, $this->userprefs, $this->immutable);
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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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$prefs = $this->fix_legacy_props($prefs);
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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($dont_override)) {
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foreach ($dont_override as $key) {
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unset($prefs[$key]);
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}
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}
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// larry is the new default skin :-)
|
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if ($prefs['skin'] == 'default') {
|
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$prefs['skin'] = self::DEFAULT_SKIN;
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}
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$this->userprefs = $prefs;
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$this->prop = array_merge($this->prop, $prefs);
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}
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|
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/**
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* Getter for all config options
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*
|
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* @return array Hash array containing all config properties
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*/
|
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public function all()
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{
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$props = $this->prop;
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|
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foreach ($props as $prop_name => $prop_value) {
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$props[$prop_name] = $this->getenv_default('ROUNDCUBE_' . strtoupper($prop_name), $prop_value);
|
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}
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|
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$rcube = rcube::get_instance();
|
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$plugin = $rcube->plugins->exec_hook('config_get', array(
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'name' => '*', 'result' => $props));
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|
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return $plugin['result'];
|
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}
|
|
|
|
/**
|
|
* Special getter for user's timezone offset including DST
|
|
*
|
|
* @return float Timezone offset (in hours)
|
|
* @deprecated
|
|
*/
|
|
public function get_timezone()
|
|
{
|
|
if ($tz = $this->get('timezone')) {
|
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try {
|
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$tz = new DateTimeZone($tz);
|
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return $tz->getOffset(new DateTime('now')) / 3600;
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}
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catch (Exception $e) {
|
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}
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}
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|
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return 0;
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}
|
|
|
|
/**
|
|
* Return requested DES crypto key.
|
|
*
|
|
* @param string $key Crypto key name
|
|
*
|
|
* @return string Crypto key
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|
*/
|
|
public function get_crypto_key($key)
|
|
{
|
|
// Bomb out if the requested key does not exist
|
|
if (!array_key_exists($key, $this->prop) || empty($this->prop[$key])) {
|
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rcube::raise_error(array(
|
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'code' => 500, 'type' => 'php',
|
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'file' => __FILE__, 'line' => __LINE__,
|
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'message' => "Request for unconfigured crypto key \"$key\""
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), true, true);
|
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}
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|
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return $this->prop[$key];
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}
|
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|
|
/**
|
|
* Return configured crypto method.
|
|
*
|
|
* @return string Crypto method
|
|
*/
|
|
public function get_crypto_method()
|
|
{
|
|
return $this->get('cipher_method') ?: 'DES-EDE3-CBC';
|
|
}
|
|
|
|
/**
|
|
* Try to autodetect operating system and find the correct line endings
|
|
*
|
|
* @return string The appropriate mail header delimiter
|
|
* @deprecated Since 1.3 we don't use mail()
|
|
*/
|
|
public function header_delimiter()
|
|
{
|
|
// use the configured delimiter for headers
|
|
if (!empty($this->prop['mail_header_delimiter'])) {
|
|
$delim = $this->prop['mail_header_delimiter'];
|
|
if ($delim == "\n" || $delim == "\r\n") {
|
|
return $delim;
|
|
}
|
|
else {
|
|
rcube::raise_error(array(
|
|
'code' => 500, 'type' => 'php',
|
|
'file' => __FILE__, 'line' => __LINE__,
|
|
'message' => "Invalid mail_header_delimiter setting"
|
|
), true, false);
|
|
}
|
|
}
|
|
|
|
$php_os = strtolower(substr(PHP_OS, 0, 3));
|
|
|
|
if ($php_os == 'win')
|
|
return "\r\n";
|
|
|
|
if ($php_os == 'mac')
|
|
return "\r\n";
|
|
|
|
return "\n";
|
|
}
|
|
|
|
/**
|
|
* Return the mail domain configured for the given host
|
|
*
|
|
* @param string $host IMAP host
|
|
* @param boolean $encode If true, domain name will be converted to IDN ASCII
|
|
*
|
|
* @return string Resolved SMTP host
|
|
*/
|
|
public function mail_domain($host, $encode=true)
|
|
{
|
|
$domain = $host;
|
|
|
|
if (is_array($this->prop['mail_domain'])) {
|
|
if (isset($this->prop['mail_domain'][$host])) {
|
|
$domain = $this->prop['mail_domain'][$host];
|
|
}
|
|
}
|
|
else if (!empty($this->prop['mail_domain'])) {
|
|
$domain = rcube_utils::parse_host($this->prop['mail_domain']);
|
|
}
|
|
|
|
if ($encode) {
|
|
$domain = rcube_utils::idn_to_ascii($domain);
|
|
}
|
|
|
|
return $domain;
|
|
}
|
|
|
|
/**
|
|
* Getter for error state
|
|
*
|
|
* @return mixed Error message on error, False if no errors
|
|
*/
|
|
public function get_error()
|
|
{
|
|
return empty($this->errors) ? false : join("\n", $this->errors);
|
|
}
|
|
|
|
/**
|
|
* Internal getter for client's (browser) timezone identifier
|
|
*/
|
|
private function client_timezone()
|
|
{
|
|
// @TODO: remove this legacy timezone handling in the future
|
|
$props = $this->fix_legacy_props(array('timezone' => $_SESSION['timezone']));
|
|
|
|
if (!empty($props['timezone'])) {
|
|
try {
|
|
$tz = new DateTimeZone($props['timezone']);
|
|
return $tz->getName();
|
|
}
|
|
catch (Exception $e) { /* gracefully ignore */ }
|
|
}
|
|
|
|
// fallback to server's timezone
|
|
return date_default_timezone_get();
|
|
}
|
|
|
|
/**
|
|
* Convert legacy options into new ones
|
|
*
|
|
* @param array $props Hash array with config props
|
|
*
|
|
* @return array Converted config props
|
|
*/
|
|
private function fix_legacy_props($props)
|
|
{
|
|
foreach ($this->legacy_props as $new => $old) {
|
|
if (isset($props[$old])) {
|
|
if (!isset($props[$new])) {
|
|
$props[$new] = $props[$old];
|
|
}
|
|
unset($props[$old]);
|
|
}
|
|
}
|
|
|
|
// convert deprecated numeric timezone value
|
|
if (isset($props['timezone']) && is_numeric($props['timezone'])) {
|
|
if ($tz = self::timezone_name_from_abbr($props['timezone'])) {
|
|
$props['timezone'] = $tz;
|
|
}
|
|
else {
|
|
unset($props['timezone']);
|
|
}
|
|
}
|
|
|
|
// translate old `preview_pane` settings to `layout`
|
|
if (isset($props['preview_pane']) && !isset($props['layout'])) {
|
|
$props['layout'] = $props['preview_pane'] ? 'desktop' : 'list';
|
|
unset($props['preview_pane']);
|
|
}
|
|
|
|
// translate old `display_version` settings to `display_product_info`
|
|
if (isset($props['display_version']) && !isset($props['display_product_info'])) {
|
|
$props['display_product_info'] = $props['display_version'] ? 2 : 1;
|
|
unset($props['display_version']);
|
|
}
|
|
|
|
return $props;
|
|
}
|
|
|
|
/**
|
|
* timezone_name_from_abbr() replacement. Converts timezone offset
|
|
* into timezone name abbreviation.
|
|
*
|
|
* @param float $offset Timezone offset (in hours)
|
|
*
|
|
* @return string Timezone abbreviation
|
|
*/
|
|
static public function timezone_name_from_abbr($offset)
|
|
{
|
|
// List of timezones here is not complete - https://bugs.php.net/bug.php?id=44780
|
|
if ($tz = timezone_name_from_abbr('', $offset * 3600, 0)) {
|
|
return $tz;
|
|
}
|
|
|
|
// try with more complete list (#1489261)
|
|
$timezones = array(
|
|
'-660' => "Pacific/Apia",
|
|
'-600' => "Pacific/Honolulu",
|
|
'-570' => "Pacific/Marquesas",
|
|
'-540' => "America/Anchorage",
|
|
'-480' => "America/Los_Angeles",
|
|
'-420' => "America/Denver",
|
|
'-360' => "America/Chicago",
|
|
'-300' => "America/New_York",
|
|
'-270' => "America/Caracas",
|
|
'-240' => "America/Halifax",
|
|
'-210' => "Canada/Newfoundland",
|
|
'-180' => "America/Sao_Paulo",
|
|
'-60' => "Atlantic/Azores",
|
|
'0' => "Europe/London",
|
|
'60' => "Europe/Paris",
|
|
'120' => "Europe/Helsinki",
|
|
'180' => "Europe/Moscow",
|
|
'210' => "Asia/Tehran",
|
|
'240' => "Asia/Dubai",
|
|
'270' => "Asia/Kabul",
|
|
'300' => "Asia/Karachi",
|
|
'330' => "Asia/Kolkata",
|
|
'345' => "Asia/Katmandu",
|
|
'360' => "Asia/Yekaterinburg",
|
|
'390' => "Asia/Rangoon",
|
|
'420' => "Asia/Krasnoyarsk",
|
|
'480' => "Asia/Shanghai",
|
|
'525' => "Australia/Eucla",
|
|
'540' => "Asia/Tokyo",
|
|
'570' => "Australia/Adelaide",
|
|
'600' => "Australia/Melbourne",
|
|
'630' => "Australia/Lord_Howe",
|
|
'660' => "Asia/Vladivostok",
|
|
'690' => "Pacific/Norfolk",
|
|
'720' => "Pacific/Auckland",
|
|
'765' => "Pacific/Chatham",
|
|
'780' => "Pacific/Enderbury",
|
|
'840' => "Pacific/Kiritimati",
|
|
);
|
|
|
|
return $timezones[(string) intval($offset * 60)];
|
|
}
|
|
}
|