Add simple configuration tricky style - using local environment orien…

…ted setting

classes/Config/File.php

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+<?php defined('SYSPATH') OR die('No direct script access.');
+
+class Config_File extends Kohana_Config_File {
+
+    const HTTP_HOST_SUFFIX = 'host';
+
+    /**
+     * Load and merge all of the configuration files in this group.
+     *
+     *     $config->load($name);
+     *
+     * It means that if application runs on yours.domain.name.com the groups
+     * list would be somothing like that:
+     *  - "cookie" - default application configuration, which could be under under cvs
+     *  - "cookie.host.yours.domain.name.com" - hostname oriented configuration, which could be used on stages
+     *  - "cookie.local" - most powerfull configuration is development environment
+     * @param   string  $group  configuration group name
+     * @return  $this   current object
+     * @uses    Kohana::load
+     */
+    public function load($group) {
+        $config = array();
+
+        $groups = Arr::merge(
+            array($group),
+            $this->build_hosts_groups($group, $_SERVER['HTTP_HOST'], self::HTTP_HOST_SUFFIX),
+            array($group . '.local')
+        );
+
+        if ($groups) {
+            foreach ($groups as $group) {
+                // Merge each file to the configuration array
+                $config = Arr::merge($config, parent::load($group));
+            }
+        }
+
+        return $config;
+    }
+
+    /**
+     * Build list of configs based on host name
+     * @param string $group     configuration group name
+     * @param string $host      host name
+     * @param string $suffix    configuration group suffix
+     * @return array
+     */
+    private function build_hosts_groups($group, $host, $suffix) {
+        $groups = array();
+        $tail   = array();
+
+        foreach (array_reverse(explode('.', $host)) as $index => $part) {
+            array_unshift($tail, $part);
+
+            if ($index !== 0)  {
+                $groups[] = "$group.$suffix." . join('.', $tail);
+            }
+        }
+
+        return $groups;
+    }
+
+}

classes/Cookie.php

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+<?php defined('SYSPATH') OR die('No direct script access.');
+
+class Cookie extends Kohana_Cookie {
+
+    /**
+     * Fast and easy way to accept configuration settings of cookies:
+     *
+     *      Cookie::init(Kohana::$config->load('cookie'));
+     *
+     * @param Config_Group $config
+     */
+    public static function init(Config_Group $config) {
+        foreach ($config as $key => $value) {
+            Cookie::${$key} = $value;
+        }
+    }
+
+}

config/cookie.php

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+<?php
+
+return array(
+    'salt'       => $_SERVER['SERVER_NAME'],
+    'domain'     => '.' . join('.', array_slice(explode('.', $_SERVER['HTTP_HOST'], 2), 1)),
+    'path'       => '/',
+    'expiration' => 0,
+    'secure'     => false,
+    'httponly'   => false,
+);