[page.system.task] Fix flush task with default cache configuration.

Configuration options for cache directories were read from flush page with a
different (null) configuration than the one used when initializing actual
services, leading to flushing having no effect.

See: https://www.yaronet.com/topics/190254-yaronet-passe-open-source/2#post-49

src/engine/network/router.php

@@ -0,0 +1,22 @@
+<?php
+
+namespace yN\Engine\Network;
+
+defined('YARONET') or die;
+
+class Router
+{
+    public static function cache_directory()
+    {
+        return config('engine.network.route.cache', './storage/cache/route');
+    }
+
+    public static function create()
+    {
+        require './library/queros/queros.php';
+
+        $cache = self::cache_directory();
+
+        return new \Queros\Router('route.php', $cache !== null ? $cache . '/queros.php' : null);
+    }
+}

src/engine/text/display.php

@@ -93,6 +93,11 @@ public static function _xml($name, $data)
         return \yN\Engine\Text\XML::encode($name, $data);
     }
 
+    public static function cache_directory()
+    {
+        return config('engine.text.display.cache', './storage/cache/template');
+    }
+
     public static function default_template()
     {
         return config('engine.text.display.template', 'html.kyanite');
@@ -188,7 +193,7 @@ public function render($file, $location, $variables = array(), $external = null,
         $setup = new \Deval\Setup();
         $setup->style = 'deindent,collapse';
 
-        $renderer_cache = config('engine.text.display.cache', './storage/cache/template');
+        $renderer_cache = self::cache_directory();
         $renderer = $renderer_cache !== null ? new \Deval\CacheRenderer($path, $renderer_cache, $setup) : new \Deval\FileRenderer($path, $setup);
 
         $self = get_class();

src/engine/text/internationalization.php

@@ -11,6 +11,11 @@ class Internationalization
     private $language;
     private $locale;
 
+    public static function cache_directory()
+    {
+        return config('engine.text.i18n.cache', './storage/cache/language');
+    }
+
     public static function default_language()
     {
         return config('engine.text.i18n.language', 'en');
@@ -37,7 +42,7 @@ public function __construct($language)
             $language = self::default_language();
         }
 
-        $locale_cache = config('engine.text.i18n.cache', './storage/cache/language');
+        $locale_cache = self::cache_directory();
         $locale_source = config('engine.text.i18n.source', './resource/language');
 
         $locale = new \Losp\Locale(mb_internal_encoding(), $language, $locale_source, $locale_cache !== null ? $locale_cache . '/' . $language . '.php' : null);

src/index.php

@@ -41,9 +41,9 @@ function config($key, $value)
 Glay\Network\HTTP::$default_timeout = config('engine.network.http.timeout', 15000);
 Glay\Network\HTTP::$default_useragent = config('engine.network.http.user-agent', 'Mozilla/5.0 (compatible; yAronet; +http://www.yaronet.com/)');
 
-require('./library/queros/queros.php');
 require('./library/redmap/redmap.php');
 require('./engine/diagnostic/logger.php');
+require('./engine/network/router.php');
 require('./engine/text/display.php');
 require('./engine/text/internationalization.php');
 require('./engine/text/input.php');
@@ -90,8 +90,7 @@ function config($key, $value)
 require('./entity/account/message.php');
 
 // Create HTTP request router
-$router_cache = config('engine.network.route.cache', './storage/cache/route');
-$router = new Queros\Router('route.php', $router_cache !== null ? $router_cache . '/queros.php' : null);
+$router = yN\Engine\Network\Router::create();
 
 // Resolve route
 $path = parse_url($_SERVER['REQUEST_URI'], PHP_URL_PATH);

src/page/system/task.php

@@ -55,15 +55,13 @@ function task_flush($request, $logger, $sql, $display, $input, $user)
     }
 
     // Remove cache files
-    $caches = array(
-        'engine.network.route.cache',
-        'engine.text.display.cache',
-        'engine.text.i18n.cache'
+    $directories = array(
+        yN\Engine\Network\Router::cache_directory(),
+        yN\Engine\Text\Display::cache_directory(),
+        yN\Engine\Text\Internationalization::cache_directory()
     );
 
-    foreach ($caches as $cache) {
-        $directory = config($cache, null);
-
+    foreach ($directories as $directory) {
         if ($directory === null) {
             continue;
         } elseif (!is_dir($directory)) {