Use a function to load system configs

src/mibew/libs/common/configurations.php

@@ -30,3 +30,39 @@ function read_config_file($file)
 
     return parse_ini_file($file, true);
 }
+
+/**
+ * Loads system configurations.
+ *
+ * The configs are cached inside the function.
+ *
+ * @return array Associative array of system configs.
+ */
+function load_system_configs()
+{
+    static $configs = null;
+
+    if (is_null($configs)) {
+        // Load and "parse" configs file. While configs are written in a php
+        // file include is the only option to load and parse them.
+        include(MIBEW_FS_ROOT . "/libs/config.php");
+
+        $configs = array(
+            'mibew_root' => $mibewroot,
+            'database' => array(
+                'host' => $mysqlhost,
+                'db' => $mysqldb,
+                'login' => $mysqllogin,
+                'pass' => $mysqlpass,
+                'tables_prefix' => $mysqlprefix,
+                'use_persistent_connection' => $use_persistent_connection,
+            ),
+            'mailbox' => $mibew_mailbox,
+            'home_locale' => $home_locale,
+            'default_locale' => $default_locale,
+            'plugins' => $plugins_list,
+        );
+    }
+
+    return $configs;
+}

src/mibew/libs/common/constants.php

@@ -34,15 +34,20 @@ define('FEATURES_VERSION', '2.0');
  * Prefix for session variables.
  * Provide an ability to instal several mibew instances on one server.
  */
-define('SESSION_PREFIX', md5($mysqlhost . '##' . $mysqldb . '##' . $mysqlprefix) . '_');
+define('SESSION_PREFIX', md5(
+    $configs['database']['host'] . '##'
+    . $configs['database']['db']. '##'
+    . $configs['database']['tables_prefix']
+) . '_');
 
 /**
  * Default value for cron security key.
  * Another value can be set at operator/settings page.
  */
 define('DEFAULT_CRON_KEY', md5(
-    $mysqlhost . '##' . $mysqldb . '##' . $mysqllogin . '##'
-    . $mysqlpass . '##' . $mysqlprefix . '##'
+    $configs['database']['host'] . '##' . $configs['database']['db'] . '##'
+    . $configs['database']['login'] . '##' . $configs['database']['pass'] . '##'
+    . $configs['database']['tables_prefix'] . '##'
 ));
 
 /**
@@ -59,4 +64,4 @@ define('USERNAME_COOKIE_NAME', 'MIBEW_Data');
 /**
  * Mailbox of the current installation
  */
-define('MIBEW_MAILBOX', $mibew_mailbox);
+define('MIBEW_MAILBOX', $configs['mailbox']);

src/mibew/libs/common/locale.php

@@ -16,7 +16,6 @@
  */
 
 use Mibew\Database;
-use Mibew\Plugin\Manager as PluginManager;
 use Symfony\Component\Translation\Loader\PoFileLoader;
 
 /**
@@ -32,7 +31,9 @@ define('LOCALE_COOKIE_NAME', 'mibew_locale');
  */
 define(
     'DEFAULT_LOCALE',
-    locale_pattern_check($default_locale) && locale_exists($default_locale) ? $default_locale : 'en'
+    (locale_pattern_check($configs['default_locale']) && locale_exists($configs['default_locale'])
+        ? $configs['default_locale']
+        : 'en')
 );
 
 /**
@@ -41,7 +42,9 @@ define(
  */
 define(
     'HOME_LOCALE',
-    locale_pattern_check($home_locale) && locale_exists($home_locale) ? $home_locale : 'en'
+    (locale_pattern_check($configs['home_locale']) && locale_exists($configs['home_locale'])
+        ? $configs['home_locale']
+        : 'en')
 );
 
 /**

src/mibew/libs/init.php

@@ -20,15 +20,16 @@
  */
 define('MIBEW_FS_ROOT', dirname(dirname(__FILE__)));
 
-// Include configuration file
-require_once(MIBEW_FS_ROOT . '/libs/config.php');
+// Load system configurations
+require_once(MIBEW_FS_ROOT . '/libs/common/configurations.php');
+$configs = load_system_configs();
 
 // Sanitize path to application and remove extra slashes
 $mibewroot = join(
     "/",
     array_map(
         "rawurlencode",
-        preg_split('/\//', preg_replace('/\/+$/', '', preg_replace('/\/{2,}/', '/', '/' . $mibewroot)))
+        preg_split('/\//', preg_replace('/\/+$/', '', preg_replace('/\/{2,}/', '/', '/' . $configs['mibew_root'])))
     )
 );
 
@@ -51,7 +52,6 @@ Mibew\Autoloader::register(MIBEW_FS_ROOT . '/plugins');
 require_once(MIBEW_FS_ROOT . '/vendor/autoload.php');
 
 // Include common libs
-require_once(MIBEW_FS_ROOT . '/libs/common/configurations.php');
 require_once(MIBEW_FS_ROOT . '/libs/common/verification.php');
 require_once(MIBEW_FS_ROOT . '/libs/common/locale.php');
 require_once(MIBEW_FS_ROOT . '/libs/common/csrf.php');
@@ -74,12 +74,12 @@ session_start();
 
 // Initialize the database
 \Mibew\Database::initialize(
-    $mysqlhost,
-    $mysqllogin,
-    $mysqlpass,
-    $use_persistent_connection,
-    $mysqldb,
-    $mysqlprefix
+    $configs['database']['host'],
+    $configs['database']['login'],
+    $configs['database']['pass'],
+    $configs['database']['use_persistent_connection'],
+    $configs['database']['db'],
+    $configs['database']['tables_prefix']
 );
 
 if (function_exists("date_default_timezone_set")) {
@@ -88,9 +88,9 @@ if (function_exists("date_default_timezone_set")) {
     @date_default_timezone_set(function_exists("date_default_timezone_get") ? @date_default_timezone_get() : "GMT");
 }
 
-if (!empty($plugins_list)) {
-    // Variable $plugins_config defined in libs/config.php
-    \Mibew\Plugin\Manager::loadPlugins($plugins_list);
+if (!empty($configs['plugins'])) {
+    // A list of plugins is defined in $plugins_list variable in libs/config.php
+    \Mibew\Plugin\Manager::loadPlugins($configs['plugins']);
 }
 
 // Load all other libraries