0
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1 <?php
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2
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3 /**
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4 +-----------------------------------------------------------------------+
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5 | This file is part of the Roundcube Webmail client |
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6 | Copyright (C) 2008-2014, The Roundcube Dev Team |
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7 | |
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8 | Licensed under the GNU General Public License version 3 or |
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9 | any later version with exceptions for skins & plugins. |
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10 | See the README file for a full license statement. |
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11 | |
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12 | PURPOSE: |
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13 | Class to read configuration settings |
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14 +-----------------------------------------------------------------------+
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15 | Author: Thomas Bruederli <roundcube@gmail.com> |
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16 +-----------------------------------------------------------------------+
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17 */
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18
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19 /**
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20 * Configuration class for Roundcube
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21 *
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22 * @package Framework
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23 * @subpackage Core
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24 */
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25 class rcube_config
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26 {
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27 const DEFAULT_SKIN = 'larry';
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28
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29 private $env = '';
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30 private $paths = array();
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31 private $prop = array();
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32 private $errors = array();
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33 private $userprefs = array();
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34
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35
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36 /**
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37 * Renamed options
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38 *
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39 * @var array
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40 */
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41 private $legacy_props = array(
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42 // new name => old name
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43 'mail_pagesize' => 'pagesize',
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44 'addressbook_pagesize' => 'pagesize',
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45 'reply_mode' => 'top_posting',
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46 'refresh_interval' => 'keep_alive',
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47 'min_refresh_interval' => 'min_keep_alive',
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48 'messages_cache_ttl' => 'message_cache_lifetime',
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49 'mail_read_time' => 'preview_pane_mark_read',
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50 'redundant_attachments_cache_ttl' => 'redundant_attachments_memcache_ttl',
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51 );
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52
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53 /**
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54 * Object constructor
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55 *
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56 * @param string $env Environment suffix for config files to load
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57 */
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58 public function __construct($env = '')
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59 {
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60 $this->env = $env;
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61
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62 if ($paths = getenv('RCUBE_CONFIG_PATH')) {
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63 $this->paths = explode(PATH_SEPARATOR, $paths);
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64 // make all paths absolute
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65 foreach ($this->paths as $i => $path) {
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66 if (!rcube_utils::is_absolute_path($path)) {
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67 if ($realpath = realpath(RCUBE_INSTALL_PATH . $path)) {
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68 $this->paths[$i] = unslashify($realpath) . '/';
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69 }
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70 else {
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71 unset($this->paths[$i]);
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72 }
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73 }
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74 else {
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75 $this->paths[$i] = unslashify($path) . '/';
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76 }
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77 }
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78 }
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79
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80 if (defined('RCUBE_CONFIG_DIR') && !in_array(RCUBE_CONFIG_DIR, $this->paths)) {
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81 $this->paths[] = RCUBE_CONFIG_DIR;
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82 }
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83
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84 if (empty($this->paths)) {
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85 $this->paths[] = RCUBE_INSTALL_PATH . 'config/';
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86 }
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87
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88 $this->load();
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89
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90 // Defaults, that we do not require you to configure,
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91 // but contain information that is used in various locations in the code:
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92 if (empty($this->prop['contactlist_fields'])) {
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93 $this->set('contactlist_fields', array('name', 'firstname', 'surname', 'email'));
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94 }
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95 }
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96
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97 /**
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98 * @brief Guess the type the string may fit into.
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99 *
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100 * Look inside the string to determine what type might be best as a container.
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101 *
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102 * @param mixed $value The value to inspect
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103 *
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104 * @return The guess at the type.
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105 */
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106 private function guess_type($value)
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107 {
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108 $type = 'string';
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109
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110 // array requires hint to be passed.
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111
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112 if (preg_match('/^[-+]?(\d+(\.\d*)?|\.\d+)([eE][-+]?\d+)?$/', $value) !== false) {
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113 $type = 'double';
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114 }
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115 else if (preg_match('/^\d+$/', $value) !== false) {
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116 $type = 'integer';
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117 }
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118 else if (preg_match('/(t(rue)?)|(f(alse)?)/i', $value) !== false) {
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119 $type = 'boolean';
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120 }
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121
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122 return $type;
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123 }
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124
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125 /**
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126 * @brief Parse environment variable into PHP type.
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127 *
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128 * Perform an appropriate parsing of the string to create the desired PHP type.
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129 *
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130 * @param string $string String to parse into PHP type
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131 * @param string $type Type of value to return
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132 *
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133 * @return Appropriately typed interpretation of $string.
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134 */
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135 private function parse_env($string, $type)
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136 {
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137 $_ = $string;
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138
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139 switch ($type) {
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140 case 'boolean':
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141 $_ = (boolean) $_;
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142 break;
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143 case 'integer':
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144 $_ = (integer) $_;
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145 break;
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146 case 'double':
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147 $_ = (double) $_;
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148 break;
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149 case 'string':
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150 break;
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151 case 'array':
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152 $_ = json_decode($_, true);
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153 break;
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154 case 'object':
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155 $_ = json_decode($_, false);
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156 break;
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157 case 'resource':
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158 case 'NULL':
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159 default:
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160 $_ = $this->parse_env($_, $this->guess_type($_));
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161 }
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162
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163 return $_;
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164 }
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165
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166 /**
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167 * @brief Get environment variable value.
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168 *
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169 * Retrieve an environment variable's value or if it's not found, return the
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170 * provided default value.
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171 *
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172 * @param string $varname Environment variable name
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173 * @param mixed $default_value Default value to return if necessary
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174 * @param string $type Type of value to return
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175 *
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176 * @return Value of the environment variable or default if not found.
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177 */
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178 private function getenv_default($varname, $default_value, $type = null)
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179 {
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180 $value = getenv($varname);
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181
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182 if ($value === false) {
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183 $value = $default_value;
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184 }
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185 else {
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186 $value = $this->parse_env($value, $type ?: gettype($default_value));
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187 }
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188
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189 return $value;
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190 }
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191
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192 /**
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193 * Load config from local config file
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194 *
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195 * @todo Remove global $CONFIG
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196 */
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197 private function load()
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198 {
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199 // Load default settings
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200 if (!$this->load_from_file('defaults.inc.php')) {
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201 $this->errors[] = 'defaults.inc.php was not found.';
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202 }
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203
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204 // load main config file
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205 if (!$this->load_from_file('config.inc.php')) {
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206 // Old configuration files
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207 if (!$this->load_from_file('main.inc.php') || !$this->load_from_file('db.inc.php')) {
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208 $this->errors[] = 'config.inc.php was not found.';
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209 }
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210 else if (rand(1,100) == 10) { // log warning on every 100th request (average)
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211 trigger_error("config.inc.php was not found. Please migrate your config by running bin/update.sh", E_USER_WARNING);
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212 }
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213 }
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214
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215 // load host-specific configuration
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216 $this->load_host_config();
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217
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218 // set skin (with fallback to old 'skin_path' property)
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219 if (empty($this->prop['skin'])) {
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220 if (!empty($this->prop['skin_path'])) {
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221 $this->prop['skin'] = str_replace('skins/', '', unslashify($this->prop['skin_path']));
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222 }
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223 else {
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224 $this->prop['skin'] = self::DEFAULT_SKIN;
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225 }
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226 }
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227
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228 // larry is the new default skin :-)
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229 if ($this->prop['skin'] == 'default') {
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230 $this->prop['skin'] = self::DEFAULT_SKIN;
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231 }
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232
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233 // fix paths
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234 foreach (array('log_dir' => 'logs', 'temp_dir' => 'temp') as $key => $dir) {
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235 foreach (array($this->prop[$key], '../' . $this->prop[$key], RCUBE_INSTALL_PATH . $dir) as $path) {
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236 if ($path && ($realpath = realpath(unslashify($path)))) {
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237 $this->prop[$key] = $realpath;
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238 break;
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239 }
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240 }
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241 }
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242
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243 // fix default imap folders encoding
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244 foreach (array('drafts_mbox', 'junk_mbox', 'sent_mbox', 'trash_mbox') as $folder) {
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245 $this->prop[$folder] = rcube_charset::convert($this->prop[$folder], RCUBE_CHARSET, 'UTF7-IMAP');
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246 }
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247
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248 // set PHP error logging according to config
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249 if ($this->prop['debug_level'] & 1) {
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250 ini_set('log_errors', 1);
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251
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252 if ($this->prop['log_driver'] == 'syslog') {
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253 ini_set('error_log', 'syslog');
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254 }
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255 else {
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256 ini_set('error_log', $this->prop['log_dir'].'/errors');
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257 }
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258 }
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259
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260 // enable display_errors in 'show' level, but not for ajax requests
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261 ini_set('display_errors', intval(empty($_REQUEST['_remote']) && ($this->prop['debug_level'] & 4)));
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262
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263 // remove deprecated properties
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264 unset($this->prop['dst_active']);
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265
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266 // export config data
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267 $GLOBALS['CONFIG'] = &$this->prop;
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268 }
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269
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270 /**
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271 * Load a host-specific config file if configured
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272 * This will merge the host specific configuration with the given one
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273 */
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274 private function load_host_config()
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275 {
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276 if (empty($this->prop['include_host_config'])) {
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277 return;
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278 }
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279
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280 foreach (array('HTTP_HOST', 'SERVER_NAME', 'SERVER_ADDR') as $key) {
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281 $fname = null;
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282 $name = $_SERVER[$key];
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283
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284 if (!$name) {
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285 continue;
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286 }
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287
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288 if (is_array($this->prop['include_host_config'])) {
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289 $fname = $this->prop['include_host_config'][$name];
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290 }
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291 else {
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292 $fname = preg_replace('/[^a-z0-9\.\-_]/i', '', $name) . '.inc.php';
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293 }
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294
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295 if ($fname && $this->load_from_file($fname)) {
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296 return;
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297 }
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298 }
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299 }
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300
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301 /**
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302 * Read configuration from a file
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303 * and merge with the already stored config values
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304 *
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305 * @param string $file Name of the config file to be loaded
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306 *
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307 * @return booelan True on success, false on failure
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308 */
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309 public function load_from_file($file)
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310 {
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311 $success = false;
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312
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313 foreach ($this->resolve_paths($file) as $fpath) {
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314 if ($fpath && is_file($fpath) && is_readable($fpath)) {
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315 // use output buffering, we don't need any output here
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316 ob_start();
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317 include($fpath);
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318 ob_end_clean();
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319
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320 if (is_array($config)) {
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321 $this->merge($config);
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322 $success = true;
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323 }
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324 // deprecated name of config variable
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325 if (is_array($rcmail_config)) {
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326 $this->merge($rcmail_config);
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327 $success = true;
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328 }
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329 }
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330 }
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331
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332 return $success;
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333 }
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334
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335 /**
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336 * Helper method to resolve absolute paths to the given config file.
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337 * This also takes the 'env' property into account.
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338 *
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339 * @param string $file Filename or absolute file path
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340 * @param boolean $use_env Return -$env file path if exists
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341 *
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342 * @return array List of candidates in config dir path(s)
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343 */
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344 public function resolve_paths($file, $use_env = true)
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345 {
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346 $files = array();
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347 $abs_path = rcube_utils::is_absolute_path($file);
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348
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349 foreach ($this->paths as $basepath) {
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350 $realpath = $abs_path ? $file : realpath($basepath . '/' . $file);
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351
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352 // check if <file>-env.ini exists
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353 if ($realpath && $use_env && !empty($this->env)) {
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354 $envfile = preg_replace('/\.(inc.php)$/', '-' . $this->env . '.\\1', $realpath);
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355 if (is_file($envfile)) {
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356 $realpath = $envfile;
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357 }
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358 }
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359
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360 if ($realpath) {
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361 $files[] = $realpath;
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362
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363 // no need to continue the loop if an absolute file path is given
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364 if ($abs_path) {
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365 break;
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366 }
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367 }
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368 }
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369
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370 return $files;
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371 }
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372
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373 /**
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374 * Getter for a specific config parameter
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375 *
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376 * @param string $name Parameter name
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377 * @param mixed $def Default value if not set
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378 *
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379 * @return mixed The requested config value
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380 */
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381 public function get($name, $def = null)
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382 {
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383 if (isset($this->prop[$name])) {
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384 $result = $this->prop[$name];
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385 }
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386 else {
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387 $result = $def;
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388 }
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389
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390 $result = $this->getenv_default('ROUNDCUBE_' . strtoupper($name), $result);
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391 $rcube = rcube::get_instance();
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392
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393 if ($name == 'timezone') {
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394 if (empty($result) || $result == 'auto') {
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395 $result = $this->client_timezone();
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396 }
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397 }
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398 else if ($name == 'client_mimetypes') {
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399 if (!$result && !$def) {
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400 $result = 'text/plain,text/html,text/xml'
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401 . ',image/jpeg,image/gif,image/png,image/bmp,image/tiff,image/webp'
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402 . ',application/x-javascript,application/pdf,application/x-shockwave-flash';
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403 }
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404 if ($result && is_string($result)) {
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405 $result = explode(',', $result);
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406 }
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407 }
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408
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409 $plugin = $rcube->plugins->exec_hook('config_get', array(
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410 'name' => $name, 'default' => $def, 'result' => $result));
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411
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412 return $plugin['result'];
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413 }
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414
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415 /**
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416 * Setter for a config parameter
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417 *
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418 * @param string $name Parameter name
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419 * @param mixed $value Parameter value
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420 */
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421 public function set($name, $value)
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422 {
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423 $this->prop[$name] = $value;
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424 }
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425
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426 /**
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427 * Override config options with the given values (eg. user prefs)
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428 *
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429 * @param array $prefs Hash array with config props to merge over
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430 */
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431 public function merge($prefs)
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432 {
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433 $prefs = $this->fix_legacy_props($prefs);
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434 $this->prop = array_merge($this->prop, $prefs, $this->userprefs);
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435 }
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436
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437 /**
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438 * Merge the given prefs over the current config
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439 * and make sure that they survive further merging.
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440 *
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441 * @param array $prefs Hash array with user prefs
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442 */
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443 public function set_user_prefs($prefs)
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444 {
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445 $prefs = $this->fix_legacy_props($prefs);
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446
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447 // Honor the dont_override setting for any existing user preferences
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448 $dont_override = $this->get('dont_override');
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449 if (is_array($dont_override) && !empty($dont_override)) {
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450 foreach ($dont_override as $key) {
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451 unset($prefs[$key]);
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452 }
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453 }
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454
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455 // larry is the new default skin :-)
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456 if ($prefs['skin'] == 'default') {
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457 $prefs['skin'] = self::DEFAULT_SKIN;
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458 }
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459
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460 $this->userprefs = $prefs;
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461 $this->prop = array_merge($this->prop, $prefs);
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462 }
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463
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464 /**
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465 * Getter for all config options
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466 *
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467 * @return array Hash array containing all config properties
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468 */
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469 public function all()
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470 {
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471 $props = $this->prop;
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472
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473 foreach ($props as $prop_name => $prop_value) {
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474 $props[$prop_name] = $this->getenv_default('ROUNDCUBE_' . strtoupper($prop_name), $prop_value);
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475 }
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476
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477 $rcube = rcube::get_instance();
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478 $plugin = $rcube->plugins->exec_hook('config_get', array(
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479 'name' => '*', 'result' => $props));
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480
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481 return $plugin['result'];
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482 }
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483
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484 /**
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485 * Special getter for user's timezone offset including DST
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486 *
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487 * @return float Timezone offset (in hours)
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488 * @deprecated
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489 */
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490 public function get_timezone()
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491 {
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492 if ($tz = $this->get('timezone')) {
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493 try {
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494 $tz = new DateTimeZone($tz);
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495 return $tz->getOffset(new DateTime('now')) / 3600;
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496 }
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497 catch (Exception $e) {
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498 }
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499 }
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500
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501 return 0;
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502 }
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503
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504 /**
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505 * Return requested DES crypto key.
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506 *
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507 * @param string $key Crypto key name
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508 *
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509 * @return string Crypto key
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510 */
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511 public function get_crypto_key($key)
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512 {
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513 // Bomb out if the requested key does not exist
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514 if (!array_key_exists($key, $this->prop) || empty($this->prop[$key])) {
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515 rcube::raise_error(array(
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516 'code' => 500, 'type' => 'php',
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517 'file' => __FILE__, 'line' => __LINE__,
|
|
518 'message' => "Request for unconfigured crypto key \"$key\""
|
|
519 ), true, true);
|
|
520 }
|
|
521
|
|
522 return $this->prop[$key];
|
|
523 }
|
|
524
|
|
525 /**
|
|
526 * Return configured crypto method.
|
|
527 *
|
|
528 * @return string Crypto method
|
|
529 */
|
|
530 public function get_crypto_method()
|
|
531 {
|
|
532 return $this->get('cipher_method') ?: 'DES-EDE3-CBC';
|
|
533 }
|
|
534
|
|
535 /**
|
|
536 * Try to autodetect operating system and find the correct line endings
|
|
537 *
|
|
538 * @return string The appropriate mail header delimiter
|
|
539 * @deprecated Since 1.3 we don't use mail()
|
|
540 */
|
|
541 public function header_delimiter()
|
|
542 {
|
|
543 // use the configured delimiter for headers
|
|
544 if (!empty($this->prop['mail_header_delimiter'])) {
|
|
545 $delim = $this->prop['mail_header_delimiter'];
|
|
546 if ($delim == "\n" || $delim == "\r\n") {
|
|
547 return $delim;
|
|
548 }
|
|
549 else {
|
|
550 rcube::raise_error(array(
|
|
551 'code' => 500, 'type' => 'php',
|
|
552 'file' => __FILE__, 'line' => __LINE__,
|
|
553 'message' => "Invalid mail_header_delimiter setting"
|
|
554 ), true, false);
|
|
555 }
|
|
556 }
|
|
557
|
|
558 $php_os = strtolower(substr(PHP_OS, 0, 3));
|
|
559
|
|
560 if ($php_os == 'win')
|
|
561 return "\r\n";
|
|
562
|
|
563 if ($php_os == 'mac')
|
|
564 return "\r\n";
|
|
565
|
|
566 return "\n";
|
|
567 }
|
|
568
|
|
569 /**
|
|
570 * Return the mail domain configured for the given host
|
|
571 *
|
|
572 * @param string $host IMAP host
|
|
573 * @param boolean $encode If true, domain name will be converted to IDN ASCII
|
|
574 *
|
|
575 * @return string Resolved SMTP host
|
|
576 */
|
|
577 public function mail_domain($host, $encode=true)
|
|
578 {
|
|
579 $domain = $host;
|
|
580
|
|
581 if (is_array($this->prop['mail_domain'])) {
|
|
582 if (isset($this->prop['mail_domain'][$host])) {
|
|
583 $domain = $this->prop['mail_domain'][$host];
|
|
584 }
|
|
585 }
|
|
586 else if (!empty($this->prop['mail_domain'])) {
|
|
587 $domain = rcube_utils::parse_host($this->prop['mail_domain']);
|
|
588 }
|
|
589
|
|
590 if ($encode) {
|
|
591 $domain = rcube_utils::idn_to_ascii($domain);
|
|
592 }
|
|
593
|
|
594 return $domain;
|
|
595 }
|
|
596
|
|
597 /**
|
|
598 * Getter for error state
|
|
599 *
|
|
600 * @return mixed Error message on error, False if no errors
|
|
601 */
|
|
602 public function get_error()
|
|
603 {
|
|
604 return empty($this->errors) ? false : join("\n", $this->errors);
|
|
605 }
|
|
606
|
|
607 /**
|
|
608 * Internal getter for client's (browser) timezone identifier
|
|
609 */
|
|
610 private function client_timezone()
|
|
611 {
|
|
612 // @TODO: remove this legacy timezone handling in the future
|
|
613 $props = $this->fix_legacy_props(array('timezone' => $_SESSION['timezone']));
|
|
614
|
|
615 if (!empty($props['timezone'])) {
|
|
616 try {
|
|
617 $tz = new DateTimeZone($props['timezone']);
|
|
618 return $tz->getName();
|
|
619 }
|
|
620 catch (Exception $e) { /* gracefully ignore */ }
|
|
621 }
|
|
622
|
|
623 // fallback to server's timezone
|
|
624 return date_default_timezone_get();
|
|
625 }
|
|
626
|
|
627 /**
|
|
628 * Convert legacy options into new ones
|
|
629 *
|
|
630 * @param array $props Hash array with config props
|
|
631 *
|
|
632 * @return array Converted config props
|
|
633 */
|
|
634 private function fix_legacy_props($props)
|
|
635 {
|
|
636 foreach ($this->legacy_props as $new => $old) {
|
|
637 if (isset($props[$old])) {
|
|
638 if (!isset($props[$new])) {
|
|
639 $props[$new] = $props[$old];
|
|
640 }
|
|
641 unset($props[$old]);
|
|
642 }
|
|
643 }
|
|
644
|
|
645 // convert deprecated numeric timezone value
|
|
646 if (isset($props['timezone']) && is_numeric($props['timezone'])) {
|
|
647 if ($tz = self::timezone_name_from_abbr($props['timezone'])) {
|
|
648 $props['timezone'] = $tz;
|
|
649 }
|
|
650 else {
|
|
651 unset($props['timezone']);
|
|
652 }
|
|
653 }
|
|
654
|
|
655 // translate old `preview_pane` settings to `layout`
|
|
656 if (isset($props['preview_pane']) && !isset($props['layout'])) {
|
|
657 $props['layout'] = $props['preview_pane'] ? 'desktop' : 'list';
|
|
658 unset($props['preview_pane']);
|
|
659 }
|
|
660
|
|
661 return $props;
|
|
662 }
|
|
663
|
|
664 /**
|
|
665 * timezone_name_from_abbr() replacement. Converts timezone offset
|
|
666 * into timezone name abbreviation.
|
|
667 *
|
|
668 * @param float $offset Timezone offset (in hours)
|
|
669 *
|
|
670 * @return string Timezone abbreviation
|
|
671 */
|
|
672 static public function timezone_name_from_abbr($offset)
|
|
673 {
|
|
674 // List of timezones here is not complete - https://bugs.php.net/bug.php?id=44780
|
|
675 if ($tz = timezone_name_from_abbr('', $offset * 3600, 0)) {
|
|
676 return $tz;
|
|
677 }
|
|
678
|
|
679 // try with more complete list (#1489261)
|
|
680 $timezones = array(
|
|
681 '-660' => "Pacific/Apia",
|
|
682 '-600' => "Pacific/Honolulu",
|
|
683 '-570' => "Pacific/Marquesas",
|
|
684 '-540' => "America/Anchorage",
|
|
685 '-480' => "America/Los_Angeles",
|
|
686 '-420' => "America/Denver",
|
|
687 '-360' => "America/Chicago",
|
|
688 '-300' => "America/New_York",
|
|
689 '-270' => "America/Caracas",
|
|
690 '-240' => "America/Halifax",
|
|
691 '-210' => "Canada/Newfoundland",
|
|
692 '-180' => "America/Sao_Paulo",
|
|
693 '-60' => "Atlantic/Azores",
|
|
694 '0' => "Europe/London",
|
|
695 '60' => "Europe/Paris",
|
|
696 '120' => "Europe/Helsinki",
|
|
697 '180' => "Europe/Moscow",
|
|
698 '210' => "Asia/Tehran",
|
|
699 '240' => "Asia/Dubai",
|
|
700 '270' => "Asia/Kabul",
|
|
701 '300' => "Asia/Karachi",
|
|
702 '330' => "Asia/Kolkata",
|
|
703 '345' => "Asia/Katmandu",
|
|
704 '360' => "Asia/Yekaterinburg",
|
|
705 '390' => "Asia/Rangoon",
|
|
706 '420' => "Asia/Krasnoyarsk",
|
|
707 '480' => "Asia/Shanghai",
|
|
708 '525' => "Australia/Eucla",
|
|
709 '540' => "Asia/Tokyo",
|
|
710 '570' => "Australia/Adelaide",
|
|
711 '600' => "Australia/Melbourne",
|
|
712 '630' => "Australia/Lord_Howe",
|
|
713 '660' => "Asia/Vladivostok",
|
|
714 '690' => "Pacific/Norfolk",
|
|
715 '720' => "Pacific/Auckland",
|
|
716 '765' => "Pacific/Chatham",
|
|
717 '780' => "Pacific/Enderbury",
|
|
718 '840' => "Pacific/Kiritimati",
|
|
719 );
|
|
720
|
|
721 return $timezones[(string) intval($offset * 60)];
|
|
722 }
|
|
723 }
|